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14078919 = 321132221
BaseRepresentation
bin110101101101…
…001111000111
3222111021122110
4311231033013
512101011134
61221432103
7230445261
oct65551707
928437573
1014078919
117a46778
12486b633
132bbc32a
141c26b31
1513817e9
hexd6d3c7

14078919 has 8 divisors (see below), whose sum is σ = 18789232. Its totient is φ = 9377280.

The previous prime is 14078917. The next prime is 14078923. The reversal of 14078919 is 91987041.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 14078919 - 21 = 14078917 is a prime.

It is a super-2 number, since 2×140789192 = 396431920417122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14078917) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5229 + ... + 7449.

It is an arithmetic number, because the mean of its divisors is an integer number (2348654).

Almost surely, 214078919 is an apocalyptic number.

14078919 is a deficient number, since it is larger than the sum of its proper divisors (4710313).

14078919 is a wasteful number, since it uses less digits than its factorization.

14078919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4337.

The product of its (nonzero) digits is 18144, while the sum is 39.

The square root of 14078919 is about 3752.1885613599. The cubic root of 14078919 is about 241.4662495861.

The spelling of 14078919 in words is "fourteen million, seventy-eight thousand, nine hundred nineteen".

Divisors: 1 3 2113 2221 6339 6663 4692973 14078919